Home > Press > Keck gives Rice $1.4M to probe quantum matter
The W.M. Keck Foundation has awarded Rice University $1.4 million to probe
one of the most elusive and mysterious areas of modern physics the bizarre
world of high-temperature superconductors, quantum magnets, and other
solid-state materials that have "strongly correlated" electrons. Rice's
program will bring together theorists and experimentalists specializing in
both ultracold atomic matter and nanoscale condensed-matter physics.
Keck gives Rice $1.4M to probe quantum matter
HOUSTON, TX | Posted on February 12th, 2007
The W.M. Keck Foundation has awarded Rice
University $1.4 million to probe one of the most elusive and mysterious
areas of modern physics the bizarre world of high-temperature
superconductors, quantum magnets, and other solid-state materials that have
"strongly correlated" electrons.
"The past decade has witnessed incredible experimental breakthroughs in both
ultracold atomic physics and condensed matter physics," said physicist Randy
Hulet, co-director of Rice's Keck Program in Quantum Materials. "We believe
Rice has all the pieces in place to make breakthroughs in our understanding
of effects that have puzzled physicists for more than 20 years."
Given the past decade's advances in nanoscale fabrication, laser cooling and
other technologies, many believe the stage is set for a major leap in our
understanding of exotic materials, such as high-temperature superconductors,
where the electrons interact so strongly with one another that their actions
cannot be explained by simple theories.
Unlike electrons in simple metals, which hardly notice one another, the
electrons in high-temperature superconductors and some magnetic materials
are intricately linked. Physicists cannot predict how any single electron in
the material will act without considering the actions of all of its
neighbors. While considerable theoretical efforts have been made, leading to
the development of major new concepts, a unified framework remains elusive
for the understanding of these strongly correlated electronic materials.
"It's the electron-electron interactions and quantum fluctuations in these
classes of materials that both create these great effects and make them so
difficult to explain," said program co-director Doug Natelson, a condensed
matter experimentalist. "In most solid-state materials, physicists can often
get away with ignoring interaction effects because they are overpowered by
stronger forces. That's just not possible in these materials." Natelson said
tunable models of these materials based on either nanostructures or cold
atoms can examine these issues directly.
For example, the advent of laser-cooling technology within the past decade
has allowed physicists working at the atomic scale to create a number of
elusive states of quantum matter, including Bose-Einstein Condensates, or
BECs, which were first predicted by Albert Einstein in the 1920s. Under the
new Keck program, Hulet's lab one of the first in the world to make BECs
is preparing a new apparatus to test the two-dimensional Hubbard model, a
theory put forward more than 20 years ago to describe the conduction and
magnetic properties of one type of strongly interacting materials, the
high-temperature superconductors. Hulet said his apparatus will allow the
use of a gas of ultracold atoms in place of the electrons in real materials
to fine tune certain properties of the system and provide theorists with
data that they couldn't otherwise get from a real material.
Similarly, mobile electrons in ³heavy fermion² materials act hundreds of
times more massive than those in ordinary metals because of quantum
interactions with magnetic atoms. The magnetic atoms also talk to each
other. A new experiment in Natelson¹s lab will use a single-molecule
electronic device as a model of these rich materials. Dialing a voltage on
the device will controllably shift the relative importance of the
interactions, so that the system may be tuned from a normal metal state into
a quantum regime with unusual conducting properties. Studies of this quantum
phase transition in real materials have given rise to many open questions,
which the model system is uniquely suited to address.
These projects are two of several that the Keck Program will support. In
all, eight principle investigators at Rice will participate in the program.
These include condensed matter experimentalists Jun Kono and Rui-Rui Du, and
ultracold atom experimentalist Tom Killian. Theoretical connections will be
made by atomic matter theorist Han Pu and condensed matter theorists Qimiao
Si and Carl Bolech.
"Quantum magnetism and strong correlations are subjects in which theory and
experiment have always gone hand in hand over the course of studying real
condensed matter materials," said Si. "In the Keck program, theory will not
only provide the intellectual foundation but will also serve as the
Hulet and Natelson said Rice is matching Keck's contribution with $1.4
million of its own. They said the lion's share of program funds will pay the
salaries of three Keck Postdoctoral Fellows and three graduate students who
will focus exclusively on the program's projects.
About Rice University
Rice University is consistently ranked one of America’s best teaching and
research universities. It is distinguished by its: size—2,850 undergraduates
and 1,950 graduate students; selectivity—10 applicants for each place in the
freshman class; resources—an undergraduate student-to-faculty ratio of 6-to-1, and the fifth largest endowment per student among American universities; residential college system, which builds communities that are both close-knit and diverse; and collaborative culture, which crosses disciplines, integrates teaching and research, and intermingles undergraduate and graduate work. Rice’s wooded campus is located in the nation’s fourth largest city and on America’s South Coast.
For more information, please click here
Copyright © Rice University
If you have a comment, please Contact
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Haydale Announces Collaboration Agreement with Swansea University’s Welsh Centre for Printing and Coatings (WCPC) July 12th, 2014
STFC takes delivery of the 100th Hitachi Tabletop SEM in the UK July 3rd, 2014
Innovation Management and the Emergence of the Nanobiotechnology Industry July 1st, 2014
Albany NanoCollege Faculty Member Selected as Editor-in-Chief of the Prestigious Journal of Electronic Materials July 1st, 2014
A Crystal Wedding in the Nanocosmos July 23rd, 2014
3-D nanostructure could benefit nanoelectronics, gas storage: Rice U. researchers predict functional advantages of 3-D boron nitride July 15th, 2014
IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014
Carbodeon enables 20 percent increase in polymer thermal filler conductivity with 0.03 wt.% nanodiamond additive at a lower cost than with traditional fillers: Improved materials and processes enable nanodiamond cost reductions of up to 70 percent for electronics and LED app July 9th, 2014
Harris & Harris Group to Host Conference Call on Second-Quarter 2014 Financial Results on August 15, 2014 July 23rd, 2014
UCF Nanotech Spinout Developing Revolutionary Battery Technology: Power the Next Generation of Electronics with Carbon July 23rd, 2014
Deadline Announced for Registration in 7th Int'l Nanotechnology Festival in Iran July 23rd, 2014
A Crystal Wedding in the Nanocosmos July 23rd, 2014
Japanese gold leaf artists worked on a nano-scale: Study demonstrates X-ray fluorescence spectroscopy is a non-destructive way to date artwork July 3rd, 2014
Harry Potter-style invisibility cloaks: A real possibility next Christmas? Forget socks and shaving foam, the big kids of tomorrow want an invisible cloak for Christmas December 19th, 2013
Chicago Awareness Organization First Not-for-Profit to Sponsor Dog Training to Detect Ovarian Cancer Odorants December 12th, 2013
ZEISS Microscopes used to create images for Art Exhibit at Midway Airport: Art of Science: Images from the Institute for Genomic Biology October 25th, 2013
Hysitron is Awarded TWO R&D 100 Awards for Highly Innovative Technology Developments in the Areas of Extreme Environments and Biological Mechanical Property Testing July 23rd, 2014
Researchers create vaccine for dust-mite allergies Main Page Content: Vaccine reduced lung inflammation to allergens in lab and animal tests July 22nd, 2014
EPFL Research on the use of AFM based nanoscale IR spectroscopy for the study of single amyloid molecules wins poster competition at Swiss Physics Society meeting July 22nd, 2014
Carbyne morphs when stretched: Rice University calculations show carbon-atom chain would go metal to semiconductor July 21st, 2014